Compound formula: MgCl2
2 answers:
You might be interested in
The concentration of solution in M or mol/L can be calculated using the following formula:
.... (1)
Here, n is number of moles and V is volume of solution in L.
The molecular formula of potassium sulfate is thus, there are 2 moles of potassium in 1 mol of potassium sulfate.
1 mol of potassium will be there in 0.5 mol of potassium sulfate.
Mass of potassium is 4.15 g, molar mass is 39.1 g/mol.
Number of moles can be calculated as follows:
Here, m is mass and M is molar mass
Putting the values,
Thus, number of moles of will be
.
The volume of solution is 225 mL, converting this into L,
Thus,
Putting the values in equation (1),
Therefore, concentration of potassium sulfate solution is 0.236 M.
Answer:
Net charge in serine at pH equal to 8.30 is "0"
Explanation:
- At pH >
, carboxyl group exists as
(charged)
- At pH <
- At pH >
(neutral)
- At pH <
(charged)
- So, at pH = 8.30, both carboxyl and amino group exists in charged state.
- Net charge in serine at pH equal to 8.30 is "0".
- Structure of serine at pH equal to 8.30 has been shown below.
